Float-valve for carbureters.



M. WEIWODA.

FLOAT VALVE FOR OARBURETERS.

APPLICATION FILED FEB.15,1910.

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UNITED STATES PATENT OFFICE.

MATHIAS WEIWODA, OF NEW YORK, N. Y.,

ASSIGNOR 'I'O GEORGE W. STEVENS, OF

NEW YORK, N. Y.

FLOAT-VALVE FOR CARBURETERS.

Patented Apr. 2, 1912.

Original application filed February 20, 1909, Serial No. 479,045. Divided and this application filed February 15, 1910. Serial No. 543,959.

To all whom it may concern Be it known that I, h Lvrn'ms \Vmwooa, a

citizen of the United States, and a resident.

of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Float-Valve for Carburetors, of which the following is a full, clear, and exact description.

This invention relates to certain improvements in carburetors, and more particularly to the means for supplying the liquid fuel to the vaporizing chamber and maintaining said fuel at the desired level.

My improved liquid-controlling means is preferably used in connection withthe carbureter claimed in my previous application, Serial No. 479,0:t5, filed l ebruary 20, 1909, of which application this is a division. but it is evident that said liquid-controlling means could be used in various other forms of carburetors and for controlling the liquid in other chambers.

The special object of my invention is to so construct and mount the float and float valve, that it may be readily removed from the liquid chamber without disassembling the latter or without removing any of the other parts of the carbureter. The float and all of the parts connected therewith are mounted on a single closure plate covering an aperture in one wall of the chamber, so that by removing this plate, the float and all of the liquid level controlling means are removed.

Reference is to be had to the accompanying drawing, forming a part of this specification, in which the figure is a central vertical section through a carburetcr constructed as disclosed in my prior application above referred to, and having a liquid-controlling means constructed in accordance with my present invention.

In the carbureter illustrated there is provided an outer sheet metal casing 10, having a chambered cover 11, a plurality of vertically-disposed fabric plates 12, and a plurality of air supply pipes 13. The air enters through a conduit 14 to an annular chamber 15 in the cover, thence downwardly through the pipes 13 into the liquid, and then up along the surfaces of the moist fabric plates 12, and out through a series of telescoping battle sections 16. Above the battle sections is a central chamber 17, and mounted on the top of the carburetor and receiving the explosive charge from said chamber. is a valve casing and throttle valve 18. All of these parts are constructed substantially as shown in my previous application above referred to, and further detail description need not be given herein.

The bottom hatlle section, 19, is closed across its lower end and directly below this section is mounted my improved liquid-controlling means, which serves to deliver liquid fuel to the casing 10 and maintain it at the desired level in respect to the plates 12 and pipes 13. The bottom of the casing is provided with a threaded opening normally clo ed by a plate 22, which plate has a central aperture 23 thorethrough. Surrounding the aperture is a boss 24, to which is connected a liquid delivery pipe 25, by any suitable form of coupling, as, for instance. a collar 26. .lVithin the boss 24 and held in place bv the pipe 25, I employ a screen for preventing impurities and solid particles from passing into the casing with the liquid. Tn order to give the screen the maximum surface and to prevent it from becoming clogged by the accumulation of impurities, the screen is preferably formed of a multiplicity of connecting conical portions. As shown. there is employed an outer truncated conical portion 27, having its periphery secured in place intermediate the ends of the boss 24- and the end of the pipe 25, and at the smaller end of this truncated conical portion is an inner and inverted conical portion 28. The two conical portions together present a large surface through which the liquid may pass and reduce to a minimum the liability of any clogging by the accumulation of solid particles. 7

At the inner end of the aperture 2?) is a valve seat for receiving a verti(ally-movable valve 29, and encircling the valve stem 30 of said valve is a float 31. Below the float arc levers 32, fulcrumed on bosses extending upwardly from the plate 22 and having their outer ends pivotally connected to the float and their inner ends connected to the valve, whereby as the liquid accumulates within the lower portion of the casing, the float may rise to force the valve downwardly against its seat and prevent the further admission of liquid. The float is somewhat smaller than the plate 22 and is preferably inclosed within a small casing 33 carried by the plate 22. This casing also serves as a guide for the upper end of the valve stem 30. As all of these parts are smaller than the opening in the bottom of the casing, and as they are all carried by the plate 22, it is evident that by unscrewing this plate and removing it from the main casing, the valve, float, casing 33, levers 32 and screws can be removed without disassembling the remainder of the carbureter.

The casing 33 is spaced from the bottom battle section 19 by a spring 39, which tends to hold all of the casing sections in their proper relative positions, and prevents any rattling of the parts. The fabric plates 12 are all supported at their lower ends on a plate 20, having a central aperture through which the casing 33 extends, so that said casing 33 tends to prevent the fabric plates and the supporting plate 20 from moving laterally or becoming displaced. The closure plate 22 also carries a pet cock 40, by means of which the carbureter casing 10 may be drained.

The carbureter casing is preferably formed from thin spun metal, while the closure plate 22 is formed of a casting. It will be noted that all of the operating parts connected with the filling or emptying of the carbureter casing with liquid, are connected to this cast metal closure plate rather than to the wall of the carbureter itself.

Various changes may be made in the con struction and operation of the parts within the scope of the appended claims, and with out departing from the spirit of my invention.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a float feed mechanism, a casing having an opening in the lower end thereof, a plate constituting a closure for said opening and having an aperture therethrough, a liquid-delivery pipe detachably secured to said plate at the-outer end of said opening, a valve Within said casing for closing said aperture, a float adjacent said valve, levers pivoted to said plate and having operative engagement with said float and said valve, and a cage inclosing said float, levers and valve and secured to said plate, said cage, float and valve being removable through the opening in said casing, upon the removal of said plate.

2. A float feed for a tank, comprising a casing provided with an opening in the wall thereof, a plate adapted to close said opening, a delivery pipe connected to said plate and delivering through the same, a floatvalve casing carried by said plate upon the inner side thereof, and a float valve within said casing controlling the passage of fluid from said delivery pipe,

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MATHIAS IVEI WODA. Witnesses C. R. GRIFFIN, LEO J. CURREN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

